Move rtp dump writer from quality test to test transport

webrtc/test/layer_filtering_transport.h

Index: webrtc/test/layer_filtering_transport.h
diff --git a/webrtc/test/layer_filtering_transport.h b/webrtc/test/layer_filtering_transport.h
index 32eb4c5a305c08d7889941ed5db33c7f25a5d68b..fbc881fdef0c465b73cd8699616ea51c02626a80 100644
--- a/webrtc/test/layer_filtering_transport.h
+++ b/webrtc/test/layer_filtering_transport.h
@@ -10,13 +10,15 @@
 #ifndef WEBRTC_TEST_LAYER_FILTERING_TRANSPORT_H_
 #define WEBRTC_TEST_LAYER_FILTERING_TRANSPORT_H_
 
+#include <map>
+#include <memory>
+
 #include "webrtc/call/call.h"
 #include "webrtc/test/direct_transport.h"
 #include "webrtc/test/fake_network_pipe.h"
+#include "webrtc/test/rtp_file_writer.h"
 #include "webrtc/test/single_threaded_task_queue.h"
 
-#include <map>
-
 namespace webrtc {
 
 namespace test {
@@ -30,7 +32,8 @@ class LayerFilteringTransport : public test::DirectTransport {
                           uint8_t vp9_video_payload_type,
                           int selected_tl,
                           int selected_sl,
-                          const std::map<uint8_t, MediaType>& payload_type_map);
+                          const std::map<uint8_t, MediaType>& payload_type_map,
+                          std::unique_ptr<test::RtpFileWriter> rtp_file_writer);
   bool DiscardedLastPacket() const;
   bool SendRtp(const uint8_t* data,
                size_t length,
@@ -45,6 +48,9 @@ class LayerFilteringTransport : public test::DirectTransport {
   const int selected_tl_;
   const int selected_sl_;
   bool discarded_last_packet_;
+
+  const int64_t start_ms_;
+  std::unique_ptr<test::RtpFileWriter> rtp_file_writer_;
 };
 
 }  // namespace test